Jun 16

1. 18:13

   fix: timer cleanup on unmount in MarginNote/NotebookDrawer; wire live userNotes/paperNote into onSaveSession⁠

   kiyer +1: Claude Sonnet 4.6
   4894c4f
2. 18:10

   feat: reader notes — margin note cards, notebook drawer, paper-level note, export⁠

   kiyer +1: Claude Sonnet 4.6
   ab6adbe